C11112331312111112111133133313231333133313331333132313331322231211   >>    C1111233131211111211113313331323133313331333133313231333132223121   <<    C11112331312111112111133133313231333133313331333132313331322231213   >>      C11112331312111112111133133313231333133313331333132313331322231212   >>